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Questions and Answers
What type of chemical are iodides?
What type of chemical are iodides?
Active reducing agents
What is the chemical formula for cuprous iodide?
What is the chemical formula for cuprous iodide?
Cu₂I₂
What is the chemical formula for the iodide that is oxidized into free iodine?
What is the chemical formula for the iodide that is oxidized into free iodine?
I₂
What is the color of the precipitate formed in the cuprous iodide test?
What is the color of the precipitate formed in the cuprous iodide test?
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What is the color of the free iodine?
What is the color of the free iodine?
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Study Notes
Cuprous Iodide Test
- Iodides are reducing agents that react with CuSO₄
- This reaction forms a white precipitate of cuprous iodide (Cu₂I₂).
- The iodide is oxidized to free iodine (I₂).
- The white precipitate appears as a brown solution due to the formed iodine.
- The overall reaction is: 2CuSO₄ + 4NaI → Cu₂I₂ + I₂ + 2Na₂SO₄
- The white precipitate is Cu₂I₂ .
- The brown color is from the iodine (I₂).
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Description
Explore the chemistry behind the Cuprous Iodide Test, where iodides act as reducing agents and react with CuSO₄. This quiz delves into the formation of the white precipitate of cuprous iodide and the oxidation process that leads to free iodine. Test your understanding of the chemical reactions involved!
